Salamandre's fat-packing bike makes much sense to me -- nothing on the bars, no racks and everything somewhat centered with frame. Not as lengthy as traditional longtail and I'll bet it rides nice and climbs OK. Racks can be added if needed. It's an inspiration for my next project.

My rig at last year's failed Arrowhead 135 attempt. Too much stuff carried high. The goal is to get everything off the bars and seat, and place it behind the seat tube and in frame bag. Live and learn.